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Drivetrain› Automatic Transmissions and Components

ATS Diesel Performance

Billet Steel Input Shaft

$922.89 $814.99 Save $107.90

SKU: 304-910-4248

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Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
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Overview

Constructed from billet steel, this input shaft offers superior strength and durability over the stock component.
Show original supplier description
The ATS Diesel Performance Allison Billet Input Shaft is a critical upgrade for the Allison transmission found in 2001-2016 GM Silverado and Sierra 2500HD/3500HD models equipped with the 6.6L Duramax engine. The factory input shaft is known to be a weak link, particularly when subjected to increased power, towing loads, or performance enhancements. This billet steel input shaft is precision machined to provide superior strength and reliability, directly addressing the common breakage issues that plague the stock component. Constructed from robust billet steel, this input shaft is built to withstand the stresses of heavy hauling, larger tires, and elevated horsepower and torque levels. It serves as a direct replacement, ensuring a perfect fit without the need for modifications. By reinforcing this key transmission component, the ATS Billet Input Shaft significantly improves drivetrain durability and reliability, providing confidence for daily driving, towing, and even more demanding applications like sled pulling.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandATS Diesel Performance
Part Number304-910-4248
CategoryDrivetrain
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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